The internal energy of a system . Question 66 options: is the sum of the kinetic energy of all of its components is the sum of the rotational, vibrational, and translational energies of all of its components refers only to the energies of the nuclei of the atoms of the component molecules is the sum of the potential and kinetic energies of the components none of these

The internal energy of a system is the sum of the potential and kinetic energies of the components

Explanation:

Internal energy is defined as the sum of two types of energy: kinetic energy and potential energy.

Kinetic energy is defined as the sum of all the kinetic energies that each element has within a system with respect to its center of mass. It is caused by the movement of particles. Meanwhile, the potential energy is the energy that is associated with each of the interactions. Potential energy is associated with the constituents of matter, of the electrostatic energy of each atom that is inside the molecules.

for points guys

im not exactly sure but i think its b!